How can RWordPress retrieve blog post content?

Question

I would like to retrieve the content of posts from my WordPress blog. Using the package RWordPress it is straightforward to retrieve categories and tags and titles, but what about the content of posts?

# Download and load the package
if (!require('RWordPress')) {
    devtools::install_github(c("duncantl/XMLRPC", "duncantl/RWordPress"))
  }

library(RWordPress)

# list all the functions in the package
lsf.str("package:RWordPress")

Here, for example, is the code to obtain categories, with my specifics redacted in brackets:

Cat <- getCategoryList(login = c([my user name] = '[my password'),
        .server = 'http://[my blog on].wpengine.com/xmlrpc.php')

The linked SO question is not applicable as it doesn't use RWordPress [HTML and CSS and PHP coding].

This site is about posting on WordPress, not retrieving from WordPress [publishing, not gettting]. Another question uses xmlrpc as does RWordPress and a getPosts call, but it does not rely on R.

Posts <- getPosts(num = 100, blogid = 0L, login = c([my user name] = '[my password]'), .server = 'http://[my blog name].wpengine.com/xmlrpc.php')

The above code returns dates and titles and status, but not content.

Thank you for any guidance.

******************* Edit after first answer

After requiring RWordPress and XMLRPC, and then defining an object for login and for the .server, here is the console message:

> getPageList(blogid = 0L, login = WordpressLogin, .server = WordpressURL)
Error in xml.rpc(.server, op, as.integer(blogid), names(login), as.character(login),  : 
  Problems

I find that "Problems" is not an informative error message for me.

Answer 1

Tell me if I am missing something, but for me the description identifier of posts seem to deliver the whole text.

RWordpress maps all the functions in XML-RPC wp

if (!require('RWordPress')) {
  devtools::install_github(c("duncantl/XMLRPC", "duncantl/RWordPress"))
}
library(RWordPress)
options(WordpressLogin = c(myusername = 'mypassword'),
        WordpressURL = 'http://localhost/myblog/wordpress/xmlrpc.php')
# library(knitr)

# can refer this page
# http://codex.wordpress.org/XML-RPC_wp

#Rwordpress has a one to one mapping 
getCategories()

#get a list of pages
getPageList()
# pick one id from above list 
id=27
getPage(pageid = id)
# description seems to have all the text of post, even though the 
# document is sparse
getPage(pageid = id)$description

#similarly for posts
getPost(postid = 6)$description

I am of course using a locally installed blog, but I'd reckon this should work remotely.